US5581965A - Floor structure - Google Patents

Floor structure Download PDF

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Publication number
US5581965A
US5581965A US08/455,111 US45511195A US5581965A US 5581965 A US5581965 A US 5581965A US 45511195 A US45511195 A US 45511195A US 5581965 A US5581965 A US 5581965A
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US
United States
Prior art keywords
joists
joist
layer
lower layer
floor structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/455,111
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English (en)
Inventor
C. J. Skovbo J.o slashed.rgensen
Ole Slott
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Junckers Industrier AS
Original Assignee
Junckers Industrier AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Junckers Industrier AS filed Critical Junckers Industrier AS
Assigned to JUNCKERS INDUSTRIER A/S reassignment JUNCKERS INDUSTRIER A/S ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JORGENSEN, CARL JORGEN SKOVBO, SLOTT, OLE
Application granted granted Critical
Publication of US5581965A publication Critical patent/US5581965A/en
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Expired - Fee Related legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/22—Resiliently-mounted floors, e.g. sprung floors

Definitions

  • the invention relates to a floor structure comprising a flooring arranged on top of a first lower and a second upper layer of parallel joists, the joists of each layer being uniformly spaced and the joists of one layer extending substantially perpendicular to the joists of the second layer, and further the lower layers of joists being interconnected and arranged on top of chocking means, at least one of the chocking means everywhere being provided substantially below the center between the superposed joists of the upper layer, and resilient spring elements being accommodated at the intersections between the two layers of joists.
  • the object of the invention is to provide a floor structure which can be put down in a fast and easy manner.
  • the two layers of joists are composed of identical prefabricated and mating members.
  • Each member comprises a predetermined number of joists, the joists of the lower layer being equally long and projecting by half the joist distance of the upper layer of joists beyond the outer joist at each adjacent end of the upper layer of joists, and the joists of the upper layer of joists being equally long, but staggered relative to one another, such that one end of some of the upper joists ends substantially at the center of a spring element on the adjacent outer joist in the lower layer of joists, and further such that the corresponding end of the remaining upper joists projects beyond the adjacent outer joist by a length substantially equal to the sum of the joist distance of the lower layer of joists and one-half the width of a lowermost joist, measured in the longitudinal direction of an uppermost joist.
  • the resulting floor structure is relatively easy to put down, due to the fact that the individual members are easily prefabricated and then put down in situ merely by joining the members with the joists of each layer extending in extension of one another, and without necessitating direct fastening of the members to one another.
  • At least one chocking means below the lower joists has been fastened in advance to the joists of each member, a chocking means also being fastened to the ends of the lower joists of each member.
  • the top side of the joists of the lower layer of joists of each member may be provided with a vertical, transverse slot substantially centrally between each pair of adjacent joists in the upper layer of joists.
  • the spring elements may be solid blocks of a rubber material of rectangular shape as seen from above, as the spring elements are of a width substantially corresponding to half the joist width in the lower layer of joists at all the intersections other than those where the upper joists of each member end, while the remaining robber blocks are substantially twice as wide. In this manner a good, resilient support of all the upper joists is ensured.
  • each rubber block may comprise a recess at each end for fastening to the lower joists, and at least each of the narrow rubber blocks may comprise a central through opening allowing passage of a screw during the fastening of the remaining joists on the lower joists, whereby a particularly easy and fast manufacture of the prefabricated members is obtained.
  • FIG. 1 is a vertical section side view through a floor structure according to the invention, whereby only a single member of joists is shown;
  • FIG. 2 is a top plan view of a joist member
  • FIG. 3 is a side view of an embodiment of a spring element
  • FIG. 4 is a top plan view of the same embodiment.
  • FIG. 5 shows a screw for securing the joists at the intersections.
  • the floor structure shown in PIG. 1 comprises a flooring 1, which is secured in a conventional manner on top of two layers of joists.
  • the layers of joists comprise a plurality of identical joist members 2, only one of which is shown. These joist members are arranged either directly on a sub-floor or spaced from the sub-floor by chocking means know per se and not shown in greater detail.
  • a joist member 2 comprises a first lower layer of parallel joists 3, 4, 5, 6, 7 and 8 equispaced at a distance 1 1 .
  • These lower joists 3-8 are of the same length and arranged with ends aligned in such a manner that they jointly cover a surface in the shape of a rectilinear rectangle.
  • a second, upper layer of joists 9, 10, 11, 12 and 13 is placed on top of the lower layer of joists 3-8.
  • These upper joists 9-13 are also parallel and equispaced, at a distance 1 2 , and extend perpendicular to the lower layer of joists 3-8.
  • the outermost joists 9 and 13 of the upper layer are arranged at a distance corresponding to one-half (1 2 /2) their mutual distance from the respective ends of the lower joists 3-8. All the joists in the lower layer have a width a, and all the joists of the upper layer have a width b. In the illustrated embodiment of the invention, the width a and the width b are identical.
  • the projecting ends of the lower joists 3-8 have a length 1 2 /2.
  • the joists of the upper layer are staggered relative to one another such that, with respect to outermost joist 3 of the lower layer, alternate upper joists are positioned immediately above the center of the joist 3 therebelow and projecting beyond that joist by a length corresponding to the sum of the joist distance 1 1 in the lower layer and one-half the joist width a/2 of the lower joists 3-8.
  • a spring element 14 of the type shown in FIGS. 3 and 4 is provided at the intersections between all the joists 3-8 and 9-13 except for those where the uppermost joists 9-13 end directly above the outermost lower joists 3 and 8, respectively.
  • These spring elements are indicated in black in FIGS. 1 and 2. They comprise a robber block, which in the preferred embodiment is made of a rubber material sold under the Trade Mark SYLOMER V-grey which has a density of 650 kg/m 3 . This rubber material is formed as a mat, from which the members shown in FIGS. 3 and 4 are cut out in the desired shape.
  • a recess 15, 16 brined as a step is provided for fastening the spring members to the lowermost joists 3-8 by means of clamps or other fastening means.
  • a through opening 17 is provided in the center of the spring element, for use during the fastening of the upper joists 9-13 to the lower joists 3-8, e.g., by means of screws 18 of the type shown in FIG. 5.
  • These screws comprise a head 19 and thread 20 spaced by a smooth intermediary shaft 21.
  • the fastening of the upper joists 9-13 to the lower joists 3-18 involves a drilling of through holes for the screws 18 in the upper joists 9-13. Subsequently, the screws 18 are inserted through these holes (not shown) and the openings 17 in the spring elements 14 and screwed into the lower joists 3-8, the thread 20 being positioned within the area of the lower joists 3-8 after final mounting.
  • Spring elements 22 are provided at the intersections where the ends of the upper joists 9-13 are positioned centrally on top of one of the outermost joists 3 and 8 in the lower layer of joists 3-8,
  • the spring elements 22 are also indicated in black in FIGS. 1 and 2 and correspond completely to the elements 14 shown in FIGS. 1 and 2 except for the absence of a through hole for the reception of a screw.
  • they have a width slightly greater than spring elements 14 so as to allow them to mate with the lower joists 3-8.
  • a chocking means 23 provided everywhere on the bottom side of the lower joists 3-8 centrally between the upper joists 9-13.
  • This chocking means is made of chipboard. material and secured by means of clamps.
  • Corresponding chocking means 24 are fastened at the ends of the lower joists 3-8.
  • the chocking means 24 are here rather long in the longitudinal direction of the joist 3-8 in question.
  • a transverse slot 25 is shaped everywhere at the center between the upper joists 9-13 and directly above the chocking means 23. This slot extends downward from the top side of the lower joists 3-8. The latter applies to all joists of a coefficient of rigidity E ⁇ 1 in the range of 250 ⁇ 10 6 to 1200 ⁇ 10 6 Nmm 2 , where E is the modulus of elasticity and 1 is the moment of inertia.
  • the joist members 2 are arranged so as to abut one another in such a manner that the lower layers of joist 3-8 extend in extension of one another, and such that the upper layers of joist 9-13 also extend in extension of one another.
  • the projecting ends of the ulcer joists 9-13 rest on top of the spring elements 22 of the adjacent members, and the projecting ends of the abutting joist members are arranged on top of the spring elements 22 on the joist member 2 shown.
  • the joist members are retained in position without further fastening to one another by being completely adjusted along the sides of the area on which the floor is to be put down. It may be necessary to cut off parts of the joist members 2.
  • the lower joists are of a length of 2,055.5 mm, while the upper joists are of a length of 1,800 mm.
  • the number of lower joists is six while the number of upper joists is five. All the joists have a cross section With a width of 51 mm and a height of 21 mm.
  • the joists are made of spruce plywood glued in parallel and including seven layers of thickness of 3 mm each. The joists are manufactured by cutting out prefabricated plates in the desired dimensions. The number and dimensions of the joists in each layer can obviously vary.
  • the spring elements 14 have a width of 25 mm, a length of 76 mm and a height of 12 mm.
  • the remaining spring elements 22 are of the same length and height, but of a width of 51 mm which corresponds to the width of the joists.
  • the slots 25 in the lower joists 3-8 have a depth of 12 mm.
  • the chocking means 23 in the area between the upper joists 9-13 have dimensions of 9 ⁇ 35 ⁇ 51 mm, whereas the chocking means provided at the ends have dimensions of 9 ⁇ 51 ⁇ 51 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
  • Body Structure For Vehicles (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
US08/455,111 1994-05-31 1995-05-31 Floor structure Expired - Fee Related US5581965A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK060994A DK171382B1 (da) 1994-05-31 1994-05-31 Gulvkonstruktion
DK0609/94 1994-05-31

Publications (1)

Publication Number Publication Date
US5581965A true US5581965A (en) 1996-12-10

Family

ID=8095523

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/455,111 Expired - Fee Related US5581965A (en) 1994-05-31 1995-05-31 Floor structure

Country Status (7)

Country Link
US (1) US5581965A (ko)
EP (1) EP0686738B1 (ko)
KR (1) KR950032947A (ko)
AT (1) ATE184354T1 (ko)
DE (1) DE69511942D1 (ko)
DK (1) DK171382B1 (ko)
NO (1) NO304896B1 (ko)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6189274B1 (en) * 1995-12-13 2001-02-20 Ahto Ollikainen Building horizontal structure
US10329777B2 (en) * 2017-05-01 2019-06-25 Spencer Gavin Hering Modular sprung floor
US20200190830A1 (en) * 2018-04-30 2020-06-18 Spencer Gavin Hering Modular Sprung Floor
US11047138B2 (en) * 2019-05-09 2021-06-29 Spencer Gavin Hering Modular sprung floor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1682734A1 (en) * 2003-10-03 2006-07-26 Junckers Industrier A/S A springing device
CA3206269A1 (en) * 2021-01-22 2022-07-28 Jason GASPERICH Extendable flooring module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914815A (en) * 1955-08-17 1959-12-01 Alexander Verna Cook Interlocked flooring and method
US4854099A (en) * 1984-10-22 1989-08-08 Junckers Industrier A/S Floor structure
US5087149A (en) * 1989-04-14 1992-02-11 Waller Jr A J Interlocking wooden mat roadway

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55165046U (ko) * 1979-05-16 1980-11-27
US4443989A (en) * 1981-12-07 1984-04-24 Lycan-Howard, Ltd. Dance floor construction
JPS58129889U (ja) * 1982-02-26 1983-09-02 株式会社　オ−エ 風呂用すのこ
JPS63134723U (ko) * 1987-02-24 1988-09-05
JPH01235768A (ja) * 1988-03-14 1989-09-20 Fujitsu Ltd 組立式床板
FR2661704B1 (fr) * 1990-05-25 1992-08-28 Geraud Pierre Support de parquet.
SE469390B (sv) * 1991-01-10 1993-06-28 Tarkett Ab Golvregel foer sportgolv
FI347U1 (fi) * 1992-06-24 1992-10-28 Vaeaenaenen Oy H Elastisk golvkonstruktion
DE9312266U1 (de) * 1993-08-17 1993-10-21 Polysport + Elaku Sportbaustoffe GmbH, 70176 Stuttgart Schwingboden

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914815A (en) * 1955-08-17 1959-12-01 Alexander Verna Cook Interlocked flooring and method
US4854099A (en) * 1984-10-22 1989-08-08 Junckers Industrier A/S Floor structure
US5087149A (en) * 1989-04-14 1992-02-11 Waller Jr A J Interlocking wooden mat roadway

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6189274B1 (en) * 1995-12-13 2001-02-20 Ahto Ollikainen Building horizontal structure
US10329777B2 (en) * 2017-05-01 2019-06-25 Spencer Gavin Hering Modular sprung floor
US20200190830A1 (en) * 2018-04-30 2020-06-18 Spencer Gavin Hering Modular Sprung Floor
US10731359B2 (en) * 2018-04-30 2020-08-04 Spencer Gavin Hering Modular sprung floor
US11047138B2 (en) * 2019-05-09 2021-06-29 Spencer Gavin Hering Modular sprung floor

Also Published As

Publication number Publication date
ATE184354T1 (de) 1999-09-15
DK60994A (da) 1995-12-01
EP0686738B1 (en) 1999-09-08
NO952136D0 (no) 1995-05-30
NO952136L (no) 1995-12-01
EP0686738A1 (en) 1995-12-13
KR950032947A (ko) 1995-12-22
NO304896B1 (no) 1999-03-01
DE69511942D1 (de) 1999-10-14
DK171382B1 (da) 1996-10-07

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AS Assignment

Owner name: JUNCKERS INDUSTRIER A/S, DENMARK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SLOTT, OLE;JORGENSEN, CARL JORGEN SKOVBO;REEL/FRAME:007501/0720

Effective date: 19950517

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
FP Lapsed due to failure to pay maintenance fee

Effective date: 20001210

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362